Syringe Filter Parameters: Filter Diameter 25 mm Membrane Aperture 0.8 μm Membrane Material PES (from USA) Effective Area 3.9 cm2 1. Filter characteristics: This filter can be mounted on a syringe. The filtering can be done by means of pushing the syringe without foreign pressure. The transparent high-polymer polypropylene material can be used for making the filter with high glossiness, small and dainty external form. In comparison with traditional filters ,this filter has higher resistance to pressure . This filter has a good structure so as to insure wholeness of filter membrane and smoothly filtering. 2. Mebrane material: This filter membrane is an improved polyether sulphone Millipore membrane, and an origin membrane imported from USA. It has many advantages such as high hydrophily, high rate of flow, acid-resistance, alkali resistance, low digestion and good strength.It is designed specially for the filter equipment used in biochemistry, test, pharmacy, precisely filtering and sterilizing. This filter is suitable to water solutions.